The chief executive of Saudi Arabia’s National Commercial Bank, one of the Arab world’s largest lenders by assets, has resigned amid a management shake-up aimed at improving the company’s performance.

Abdul Kareem Abu Al Nasr, who became NCB’s chief executive in 2006, has stepped down under pressure from the board who believe the bank is underperforming. Other people to have left the bank include the head of services, the head of audit and the head of human resources, the same person added.